Ferreira, V., & Ferreira, r. P. E. (2009). Do mundo original (3a ed.). Quetzal.
Chicago Style (17th ed.) CitationFerreira, Vergílio, and rev. Pedro Ernesto Ferreira. Do Mundo Original. 3a ed. Quetzal, 2009.
MLA (8th ed.) CitationFerreira, Vergílio, and rev. Pedro Ernesto Ferreira. Do Mundo Original. 3a ed. Quetzal, 2009.
Warning: These citations may not always be 100% accurate.